The web application [] appears to have started a thread named [thread-0]

最近在项目中，突发了一个情况，就是服务器在跑了一段时间之后，总是会莫名其妙的挂掉，初始的时候认为是服务器原因，也没有多加理会，直接重启了服务，可是当这个情况出现了两三次之后，感觉不对，还是得解决一下，这是个问题。

异常信息：

31-May-2018 09:53:48.523 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [xw-wyyx-school] registered the JDBC driver [com.alibaba.druid.proxy.DruidDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
31-May-2018 09:53:48.524 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [xw-wyyx-school] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
31-May-2018 09:53:48.530 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [xw-wyyx-school] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:java.lang.Object.wait(Native Method)java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143)com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:40)
31-May-2018 09:53:48.531 WARNING [localhost-startStop-2] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [xw-wyyx-school] appears to have started a thread named [Timer-0] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:java.lang.Object.wait(Native Method)java.util.TimerThread.mainLoop(Timer.java:552)java.util.TimerThread.run(Timer.java:505)
31-May-2018 09:53:48.617 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["http-nio-9080"]
31-May-2018 09:53:48.627 INFO [main] org.apache.coyote.AbstractProtocol.stop Stopping ProtocolHandler ["ajp-nio-9009"]
31-May-2018 09:53:48.635 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["http-nio-9080"]
31-May-2018 09:53:48.636 INFO [main] org.apache.coyote.AbstractProtocol.destroy Destroying ProtocolHandler ["ajp-nio-9009"]

细看一下，原来是mysql驱动，线程回收不及时，导致tomcat守护线程报错。

解决方案：

package com.ds.utils;import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Enumeration;import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;import com.mysql.jdbc.AbandonedConnectionCleanupThread;@WebListener
public class ContextFinalizer implements ServletContextListener {public void contextInitialized(ServletContextEvent sce) {}public void contextDestroyed(ServletContextEvent sce) {Enumeration<Driver> drivers = DriverManager.getDrivers();Driver d = null;while (drivers.hasMoreElements()) {try {d = drivers.nextElement();DriverManager.deregisterDriver(d);System.out.println(String.format("ContextFinalizer:Driver %s deregistered", d));} catch (SQLException ex) {System.out.println(String.format("ContextFinalizer:Error deregistering driver %s", d) + ":" + ex);}}try {AbandonedConnectionCleanupThread.shutdown();} catch (InterruptedException e) {System.out.println("ContextFinalizer:SEVERE problem cleaning up: " + e.getMessage());e.printStackTrace();}}
}

The web application [] appears to have started a thread named [thread-0]相关推荐

严重: The web application [] appears to have started a thread named [Thread-
http://www.myexception.cn/h/988782.html 1,获取dump 2,从dump找到正在运行的线程所属class 3,在myeclise 开启debug模式,给正在运行 ...
异常：“严重: The web application [] appears to have started a thread named [Thread-”
严重: The web application [] appears to have started a thread named [TestScheduler_Worker-1] but ha ...
The web application [] appears to have started a thread named [Thread-
在eclipse上部署web项目到tomcat启动时出现了"The web application [] appears to have started a thread named [Th ...
WebappClassLoaderBase | The web application [ROOT] appears to have started a thread named [HikariPo
原文链接 linux(RHEL8)中使用root启动java程序(使用springboot 框架)时可以正常的访问,而当使用非root用户启动springboot 的java 程序时,遇到以下错误: ...
tomcat 启动异常 The web application [ROOT] registered the JDBC driver [xxx] but failed to unregister it
tomcat启动的时候出现如下异常: 22-Feb-2021 20:25:30.697 严重 [RMI TCP Connection(3)-127.0.0.1] org.apache.catalina ...
ModSecurity web application firewall (WAF) Research - .Little Hann
转载地址:http://bluereader.org/article/97681813 catalog 引言 OWASP ModSecurity Core Rule Set (CRS) Project ...
ModSecurity web application firewall (WAF) Research
catalog 0. 引言1. OWASP ModSecurity Core Rule Set (CRS) Project2. Installation mod_security forApache3 ...
微软压力测试工具 web application stress
WEB服务器的压力测试工具~ 115808 2009年8月1日 lbimba 铜牌会员这里给广大的煤油推荐一个web网站压力测试工具.它可以用来模拟多个用户操作网站,在程序投入运行时,可以用它来进行 ...
Unable to complete the scan for annotations for web application
2019独角兽企业重金招聘Python工程师标准>>> Unable to complete the scan for annotations for web application ...

The web application [] appears to have started a thread named [thread-0]

The web application [] appears to have started a thread named [thread-0]相关推荐

最新文章

热门文章